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(No Model.) 2 Sheets-Sheet 1.

y W. A. HATGHER.

FURNACE.

No. 445,249. Patented Jan. 27, 1891.

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STATES Tao PATENT Orricn.

\VILLIAM ANDREW HATCHER, OF DALLAS, TEXAS, ASSIGNOR OF ONE- FOURTII TO M. V. KEENE, OF SAME PLACE.

FURNACE.

SPECIFICATION forming part of Letters Patent No. 445,249, dated January 27, 1891.

Application filed April 15, 1890. Serial No. 348,072. (No model.)

To all whom it DMZ/y GOTLGGI'IL.

Be it known that I, WILLIAM ANDREW HATOHER, a citizen of Dallas, in the county of Dallas and State of Texas, have invented certain new and useful Improvements in Furnaces; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to an improvement in furnaces, and more particularly to such as are employed for burning offal, refuse from slaughtering-honses, (be, and has for its 0bj act to construct a furnace in such a manner that the requisite amount of heat may be employed without the liability of destroying any part of the furnace.

A further object is to so construct a furnace for burning refuse, 850., that the materials inserted therein may be consumed, and any liquid matter be vaporized and discharged in the form of vapor.

A further object is to produce a furnace for burning refuse, &c., in which the chamber for containing the material to be consumed shall be surrounded by water.

A further object is to so construct a furnace to be used in connection with slaughteringestablishments for burning offal, &c., that the chamber in which the offal is to be consumed shall be surrounded with water, and a sulficient amount of steam generated by the engine of such slaughtering-establishment or other machinery.

\Vith these objects in view the invention consists in certain novel features of construction and combinations and arrangements of parts, as hereinafter set forth, and pointed out in the claims.

In the accompanying drawings, Figure l is a front view of the furnace. Fig. 2 is a longitudinal sectional view. Figs. 3 and 4 are views of certain details.

A represents the front portion of the furnace, made of suitable material and containing a fire-box l3, grate C, and ash-pit D, suitable doors B and D being provided for the firebox and ash-pit, respectively, and above the door B a stoke hole B is made.

Located in and surrounded by the brickwork of the furnace in rear of the fire-box is a boiler F, having a large flue G com1nuni eating at its front end with the fire-box of the furnace. The outer and inner shells to Z) of the boiler are closed by means of heads 0 d,

one at each end, each of said heads being provided with flanges c, which enter the ends of the boiler, and these flanges are secured to the shells to b by means of rivets c or in any other suitable manner. The inner and outer shells to b are so arranged relatively to each other that the water-space at the upper portion of the boiler will be greater than the space at the lower portion of said boiler, as shown in Figs. 1 and 2. At one end of the boiler a space 6 is made, with which space an opening 6 in the rear end of the boiler is made to communicate, by means of which opening access may be had to the interior of the boiler. The opening a is normally closed by means of a cover 11, connected at one end of a screw-threaded rod f, the other end of said rod being passed through a screw-threaded perforation in a yoke f, secured to the rear head cl of the boiler and prevented from working loose by means of a nut (Z Below the cover 11 the masonry is arched concentric with the boiler, as shown in Fig. 2, and beneath this arch an opening g is made in the rear wall of the furnace, through which an implement may be inserted for agitating the materials in the fiue of the boiler, such materials being introduced into said fine in a manner presently explained.

In the upper part of the boiler the two shells at b are provided with openings h, the opening in the outer shell or being made larger than the opening in the inner shell Z). Secured to the outer shell a and surrounding each opening it therein is an annular sleeve 1', which extends upwardly through the masonry on top the boiler to the top surface thereof. A similar annular sleeve 1', of smaller diameter, is secured to the inner shell Z) and adapted to surround each perforation therein, these sleeves t" also extending upwardly to the top of the masonry over the boiler. The chambers '6 formed by the sleeves it, are closed by annular plates i which plates are provided with inwardly-projecting flanges, by means of which they are riveted or otherwise secured to the sleeves i i. Thus it will be seen that the flue G in the boiler F is provided with openings or mouths 11, through which material may beinserted into said flue. The inlets or mouths H are covered by means of lids H of fire-clay or other suitable material, having handles H secured thereto by means of which to remove and replace them.

Beneath the boiler and extending beyond the rear end thereof a chamber I is formed between said boiler and the masonry at the base of the furnace. The chamber I is adapted to communicate with the flue G of the boiler at the rear end thereof, as shown in Fig. 2, and also by means of perforations j, made through the shells to b at the lower portion of the boiler. These perforations j are preferably arranged in two series, as shown in Fig. 2, each series extending from end to end of the boiler, or nearly so. In producing the perforations j the shells to l) are provided with aligned screw-threaded perforations, and in each pair of these aligned perforations a section of pipe j is screwed and riveted in' any suitable manner.

Communicating with the chamber I at the forward end and at opposite sides thereof are two fines J J, which flues extend in a diagonal direction to the top of the furnace at the forward end thereof. The two flues J communicate at their upper ends'with a common chamber J, which chamber in turn communicates with a stack J Fire having been built in the firebox, and the boiler having been filled with Water, the offal, refuse, or other material is introduced into the flue G through the mouths H, any liquid introduced with such material finding its way through the perforations j into the chamber I. The heat from the fire passes from the fire-box through the flue G and acts on the materialcontained therein. From the flue G the heat passes into and through the chamber I, and finally out through the flues J to the stack J During the passage of the heat through the flue G the material therein will be consumed, and during its passage through the chamber I the gases will be consumed and the liquid in said chamber will be vaporized.

15y constructing and arranging a furnace for burning offal, &c., as above described, the boiler will be protected by the masonry surrounding it, and a great heat maybe employed for burning refuse, 850.

My improved furnace is admirably adapted for use at a sanitary crematory where garbage and cityoffals are burned in connection with a slaughtering-establishment, and the steam generated may be employed for running necessary machinery.

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a furnace, the combination, with suitable masonry having a fire-box built therein, of a boiler inclosed by said masonry and having a flue in communication with said firebox,,and means for introducing material into said flue, substantially as set forth.

2. In a furnace, the combination, with a firebox, of a boiler having a flue therein, said boiler having months or openings communicating with said .flues, and a chamber beneath the boiler and communicating with the flue in the boiler, substantially as set forth.

In a furnace, the combination, with a fire box, of a boiler having a flue in communication with said fire-box, said boiler being provided with openings or mouths in its upper portion and flues or passages in its lower portion in communication with the flue in the boiler, and a chamber beneath the boiler, substantially as set forth.

at. In a furnace, the combination, with a firebox, of a boiler having a flue in communication with said fire-box, said boiler being pro vided with mouths which extend to the top of the furnace and communicate with the flue in the boiler, lids for said mouths, and a chamber beneath the boiler, in communication with the flue therein, substantially as set forth.

5. In a furnace, the combination, with a firebox, of a boiler having a flue in communication with said fire-box, said boiler being provided with openings in its upper portion, sleeves secured to and surrounding said openings and extending to the top of the furnace, lids adapted to cover said sleeves, and a chamber beneath the boiler, in communication with the flue in the boiler, substantially as set forth.

6. In a furnace, the combination, with a firebox, of a boiler having a flue in communication with said fire-box, said boiler being provided with openings in its upper and lower ,portions, which communicate with the flue in the boiler, a chamber beneath the boiler, in communication with the flue therein, and flues connecting said chamber with a smoke-stack, substantially as set forth.

7. In a furnace, the combination, with a firebox, of a boiler having a fine in communication with said fire-box, said boiler being provided with openings in its upper and lower portions, which communicate with the flue in said boiler, a chamber beneath the boiler, and flues communicating at one end with said chamber at opposite sides of the boiler and at their other ends in a common smoke-stack, substantially as set forth.

8. In a furnace, the combination, with suitable inclosing masonry and a fire-box, of a boiler having a flue in communication with said fire-box, said boiler having openings or months in communication with the flue therein, the boiler also having an opening in one end, a valve or door for closing said opening, a chamber beneath the boiler, and flues connecting said valve with the open air, substantially as set forth.

9. In a furnace, the combination, with suitable inclosing masonry and a fire-box, of a boiler having a fine in communication therewith, months in said boilerin communication With said flue, a chamber beneath the boiler, in com munication with the flue in the boiler, said masonry being provided with an opening in one end of the furnace, by means of Which access may be had to the flue in the boiler, substantially as set forth.

10. In a furnace, the combinatiomwith a firebox, of a boiler having a flue in communication therewith, said boiler comprising two shells arranged eccentrically one within the other, said shells being provided with openingsin their upper and lower portions, sleeves connected to the tops of said shells and surrounding the openings to produce mouths communicating with the fine in the boiler, fines inserted in the openings in the lower portion of the shells, and a chamber beneath the boiler, substantially as set forth.

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

WILLIAM ANDREX T I-IATGHER.

Witnesses:

S. A. NANCE, J. W. BROWN. 

